00473115

Component

http://onlinepubs.trb.org...1987/1106v1/1106v1-026.pdf

https://scholar.google.co...LINK&publication_year=1987

Important factors influence the performance of surfacing seal, or surface treatments, such as the loss of voids that results from the wear of the aggregate and the effect of traffic on the embedment of the aggregate in the underlying layer on which it is constructed. Research results are given that indicate the likely reasons why single seals are generally more susceptible to fatting-up than double seals. It is shown how the modified tray test can be used to avoid this problem. A rational approach to the design of single and double seals that incorporates the actual measured void content instead of an accepted average quantity is outlined. The accurate determination of the stone spread rate with the modified tray test is also discussed.

This paper appeared in Transportation Research Record N1106, Fourth International Conference on Low-Volume Roads, Volume 1. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

00490258

pp 202-207

1987-8

Transportation Research Record

International Conference on Low Volume Roads, 4th, 1987, Ithaca, New York, USA

0309044545

Print

Figures (9) ; References (4)

Accuracy; Aggregates; Air voids; Flow measurement; Performance; Seal coats; Spreading; Surface treating

Design; Geotechnology; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I36: Aggregates

TRIS, TRB

Sep 30 1987 12:00AM